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Almost 100 hydropower dams are planned on the 2700 mile Mekong River, which is a huge economic driving force and a food source for millions living in Burma, China, Vietnam, Laos, Thailand and Cambodia. While these dams will supply much-needed electricity, they will change the flow patterns on the river, which could impact businesses and food security from fisheries. New research now shows how to solve this tradeoff: regulate water releases from the dams so that there are long periods of low water flow interspersed with pulses of flooding.